<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <title>404错误页面</title>
</head>
<body>
    <center style="margin: 30px">
        <h1>页面访问错误，请检查你的地址是否正确</h1>
        <p>错误代码:404</p>
    </center>
</body>
</html>